Pneumatic lint-clearer for warping-machines



J. E. FARRELL. PNEUMATIC LINT CLEARER FOR WARPING MACHINES APPLICATION FILED NOV. 24. 1919. v

Patented May 4, 1920.

In V672 [on W2 23- UNITED sTA'rEs PATENT OFFICE.

JAMES E. FARRELL, OF NEW BEDFORD, MASSACHUSETTS, ASSIGNOR T0 '1. C. ENTWISTLE COMPANY, OF LOWELL, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

PNEUMATIC LINT CLEARER FOR WARPING-MACHINES.

To all whom it may concern Be it known that I, JAMES E. FARRELL, a citizen of the United States, residing at New Bedford, in the county of Bristol, State of Massachusetts, have invented a certain new and useful Improvement in Pneumatic Lint-Clearers for -Warping-Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention has relation to warping machines, and comprises a traveling blower disposed above theyarns and operating to direct a blast or current of air in different directions through the yarns, combs, and drop-wires for the purpose of clearing lint away from the same.

Heretofore the lint accumulating on warping machines has been a source of constant trouble, as by collecting in the combs and later being carried forward by the yarns, adhering to the latter so as to form slugs or bunches in the finished cloth; also, by clogging the drop-wires so that the stop-motion mechanism is rendered ineffective to arrest the winding. The customary method of fanning the link from the bed of the machine, 2'. 6., by the use of a fan in the hands of an operator, is unsatisfactory and inefi'ective. Mechanical fans and suction devices havebeen used, but in their use the fibers of cotton have been caused to become Wrapped and bent about the yarns, drop-wires, and other parts, in such manner as not to be dislodged, owing to the current of air moving always in a fixed direction.

In my invention, a blast or current of air is produced by a blower,'preferably a fan of the usual electrically driven type, preferably (though not necessarily in all cases) suspended above the warping machine, traversed across the machine laterally, and from time to time adjusted automatically to change the direction of the flow of air produced by its action, as by being rotated'step by step about a vertical axis. The means for producing the blast of air may be varied through the range of e uivalents. The blower is adjusted to deliver its blast at an oblique angle, so that in virtue of the progressive adjustments a current of air Specification of Letters Patent.

Patented May 4, 1920.

Application filed November 24, 1919. Serial No. 340,349.

will be directed to all parts of the bed from different angles, thus thoroughly and officiently loosening and clearing away all accumulated lint therefrom.

In the accompanyin drawings, Figure 1 is a front elevation 0 a warping machine embodying my invention.

Fig. 2 is a sectionalview of same on line 2, 2, of Fig. 1, like characters having ref erence to corresponding parts in both figures.

In the drawings is illustrated so much of a typlcal warping machine as is necessary for an understanding of my invention. Upon suitable stands 1, 1, erected above the bed of the warping machine, is supported a traverse screw formed with the customary double screw-thread thereon, one end of the shaft of said screw being shown at 3. Said traverse screw revolves 1n bearing-sleeves 4, 4, fixed in the upper extremities of stands 1, 1,'and is rotated through'the bevel gears o, 5, by means of shaft 7, which in turn is driven by bevel gears 6, 6, from the slowmotion drive-mechanism. Surrounding traverse screw 3 is a sleeve 9, fixedly supported upon the inner ends of bearingslceves 4, 4, and provided with a longitudinal slot to admit the traverse dog 10, carried by the traversing collar 11 which surrounds said sleeve and is adapted to slide oted to turn in a horizontal plane upon the under side of said traversing collar 11. Two downwardly projecting lugs 13, 13, on said ratchet receive a pintle attached to the bail 14, from. which latter is suspended on trunnions the fan 15. A guard 16 is provided about the blades of said fan '15. pawls 17, 17, are carried by arms 18, 18, depending from the bearing-sleeves 4, 4. The said pawls by engaging with the teeth of the ratchet 12 at the end of each traverse operate to shift the fan 15 angularly by causing a partial rotation of the ratchet and fan about the vertical pivot connecting the ratchet-wheel with the collar 11. A knifes'witch 19 controls the electric current which drives fan 15; the knife-blade of said switch is secured to the pedal rockshaft so that the current flows only when the warping machine is running.

Hooked In the Operation of my invention, the blower is automatically set in action as soon as the warper isput on high speed. "Ihe pivotal connection of the fan casing to the supporting bail 14 permits the fan 15 to be swung to vary the degree of inclination with respect to the horizontal. The fan 1s shifted angularly at the end of the traverse in each direction by means of the hooked pawls 17, 17, under which the toothed portion of the ratchet-wheel 12 is caused to pass, the said pawls acting alternately through their engagement with the teeth of said ratchet-wheel to cause a partial or stepby-step rotation of the fan supportlng ratchet-wheel 12 around the pivot connecting it with the traversing collar 11 as the fan begins its traverse toward the other end of the machine. Thus the blast of air is directed at various angles, toward the front-and back combs a and b, the dropwires 0, and the yarns d, with the effect of keeping the parts named clean and clear of the lint which accumulates and wraps itself about them.

While I have illustrated and described certain forms in which theinvention may be embodied, I am aware that many modifications may be made therein by any person skilled in the art, without departing from the scope of the invention as expressed in the claims. Therefore, I do not wish to be limited to the particular forms shown, or to the details of construction thereof, but

What I claim as my invention is,

1. The combination, with a warping machine, of a traveling blower, and means to change the direction of its blast from time to time to cause the latter to blow obliquely through the yarns in various controlled di rections.

2. The combination, with a warping ma chine, ofa blower mounted above the path of the yarns, means for causing it to travel back and forth across the latter, and means to change the direction of its blast from time to time to cause the latter to blow obliquely through the yarns at various angles.

3. The combination, with a warping machine, of a blower pivoted to allow direction of its blast obliquely through the yarns at various angles with respect to the horizontal, and means for traversing it back and forth transversely of said path.

4. The combination, with a warping machine, of a traveling blower pivoted to allow adjustable :inclination of its blast obliquely with respect to the horizontal through the yarns,and means for rotating said blower in a horizontal plane to cause the air-current to blow in various controlled directions.

5. The combination, with a warping machine, of a traveling blower, and means to control the direction of its blast to cause the latter to blow obliquely at various angles at different times, for the purpose of clearing the yarns and drop-wires.

6. The combination, with a warping machine, of a traveling blower, and means to control the direction of its blast to cause the latter to blow obliquely at variousangles at different times, for the purpose of clearingthe drop-wires and combs.

7. The combinalion, with a warping machine, of a blow r, traversing means for moving said blower back and forth transversely of the machine, and means to adjust it step by step as it traverses to cause its blast to sweep the machine in different directions with an inclined blast.

8. The combination, with a warping machine, of a blower, traversing means for moving said blower back and forth transversely of the machine, means to adjust it step by step as it traverses to sweep the entire machine with an inclined blast, and means to actuate said blower only when the machine is running on high speed.

9. The combination, with a warping machine, of a fan, a support therefor, a traverse screw for said support, a ratchet-wheel connected with said fan, pawls at each end of said traverse screw adapted to engage with said ratchet-wheel for rotating said fan step by step around a vertical axis, and means for driving said fan operable only when the said warping machine is running at full speed.

In testimony whereof I aflix my signature.

JAMES FARRELL. 

